Question

When a dirty shirt is soaked in soap water, the hydrophobic part attaches to the ______ molecules.

Answer 1

(1) The molecules of soap or detergent have two parts: a hydrophobic part, which means water repellant, and a hydrophilic part, which means attracted to water.

(2) When soap or detergent is applied to dirty clothes soaked in water, the hydrophobic part attaches to the dirt molecules and the hydrophilic part attaches to the water molecules.

Thus, when a dirty shirt is soaked in soap water, the hydrophobic part attaches to the dirt molecules.